Brešar, Boštjan. “Vizing-Like Conjecture for the Upper Domination of Cartesian Products of Graphs &Ndash; The Proof”. The Electronic Journal of Combinatorics 12, no. 1 (July 19, 2005): N12. Accessed March 27, 2026. https://www.combinatorics.org/ojs/index.php/eljc/article/view/v12i1n12.